Split Crest Technique with Immediate Implant to Treat Horizontal Defects of the Alveolar Ridge: Analysis of Increased Th
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CLINICAL PAPER
Split Crest Technique with Immediate Implant to Treat Horizontal Defects of the Alveolar Ridge: Analysis of Increased Thickness and Implant Survival Carolina Santos Ventura de Souza1 • Bruno Costa Martins de Sa´2 • Douglas Goulart3 • Gabriel Albuquerque Guillen1 • Felipe Germo´glio C. Maceˆdo1 Claudio Ferreira No´ia1
•
Received: 29 June 2019 / Accepted: 10 January 2020 Ó The Association of Oral and Maxillofacial Surgeons of India 2020
Abstract Objective To assess bone thickness augmentation and implant survival in ridges with horizontal atrophy managed through split crest technique with concomitant installation of dental implants. Materials and Methods Thirteen patients with maxillary bone atrophy underwent surgery and had their bone thickness assessed through cone beam computed tomography 6 months pre- and postoperatively. Comparative measurements of initial and final bone height and thickness were taken using Dolphin ImagingÒ 11.5 software. The distance between the nasal fossa floor or the maxillary sinus and the alveolar crest determined the bone height, while the measurement of bone thickness took into account
& Claudio Ferreira No´ia [email protected] Carolina Santos Ventura de Souza [email protected] Bruno Costa Martins de Sa´ [email protected] Douglas Goulart [email protected] Gabriel Albuquerque Guillen [email protected] Felipe Germo´glio C. Maceˆdo [email protected] 1
Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Av. Limeira, 901, Areia˜o, Piracicaba, Sa˜o Paulo 13414-903, Brazil
2
Dentistry Department, College SOEP/FACSETE Dental School, Poˆrto Velho, Brazil
3
Department of Oral Diagnosis, Centro Universita´rio EuroAmericano, Brası´lia, Brazil
the distance between the vestibular cortical bone and the palatal cortical bone at the crest level, and at 5 mm and 10 mm from it. Results The bone height loss of 0.68 mm was statistically significant (p = 0.01). The average horizontal bone gain was 3.45 mm at ridge level, 3.03 mm at 5 mm from it and 2.42 mm at 10 mm from it. The mean horizontal gain for the three regions was 2.97 mm, and the values were statistically significant for all three regions assessed (p \ 0.01). No complications were associated with the surgical procedures, and 23 implants were installed following the surgical expansion. No implants were lost (100% survival). Conclusion The split crest technique proved to be viable and predictable, enabling a significant increase in ridge thickness and a high percentage of implant survival. Keywords Dental implants Rehabilitation Alveolar ridge augmentation
Introduction The function of the alveolar process is to support teeth, and loss of that function leads to a gradual, chronic and cumulative resorption in the region. That physiological process of bone resorption whether spontaneous or, more commonly, associated with traumas, pathologies and traumatic dental extractions constantly results in bone defects that represent a real difficulty for the inst
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